linux-kernel - [PATCH v3 4/7] arm64: dts: ti: k3-j721e-sk: Add requiried voltage supplies for IMX219

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Message-ID: <20250415111328.3847502-5-y-abhilashchandra@ti.com>
Date: Tue, 15 Apr 2025 16:43:25 +0530
From: Yemike Abhilash Chandra <y-abhilashchandra@...com>
To: <nm@...com>, <vigneshr@...com>
CC: <kristo@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <vaishnav.a@...com>, <jai.luthra@...ux.dev>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <imx@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
        <u-kumar1@...com>, Yemike Abhilash Chandra <y-abhilashchandra@...com>,
        <stable@...r.kernel.org>
Subject: [PATCH v3 4/7] arm64: dts: ti: k3-j721e-sk: Add requiried voltage supplies for IMX219

The device tree overlay for the IMX219 sensor requires three voltage
supplies to be defined: VANA (analog), VDIG (digital core), and VDDL
(digital I/O). Add the corresponding voltage supply definitions to avoid
dtbs_check warnings.

Fixes: f767eb918096 ("arm64: dts: ti: k3-j721e-sk: Add overlay for IMX219")
Cc: stable@...r.kernel.org
Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@...com>
---
 .../dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso  | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso b/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
index 4a395d1209c8..4eb3cffab032 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
@@ -19,6 +19,33 @@ clk_imx219_fixed: imx219-xclk {
 		#clock-cells = <0>;
 		clock-frequency = <24000000>;
 	};
+
+	reg_2p8v: regulator-2p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "2P8V";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		vin-supply = <&vdd_sd_dv>;
+		regulator-always-on;
+	};
+
+	reg_1p8v: regulator-1p8v {
+		compatible = "regulator-fixed";
+		regulator-name = "1P8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		vin-supply = <&vdd_sd_dv>;
+		regulator-always-on;
+	};
+
+	reg_1p2v: regulator-1p2v {
+		compatible = "regulator-fixed";
+		regulator-name = "1P2V";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		vin-supply = <&vdd_sd_dv>;
+		regulator-always-on;
+	};
 };
 
 &csi_mux {
@@ -34,6 +61,9 @@ imx219_0: imx219-0@10 {
 		reg = <0x10>;
 
 		clocks = <&clk_imx219_fixed>;
+		VANA-supply = <&reg_2p8v>;
+		VDIG-supply = <&reg_1p8v>;
+		VDDL-supply = <&reg_1p2v>;
 
 		port {
 			csi2_cam0: endpoint {
@@ -55,6 +85,9 @@ imx219_1: imx219-1@10 {
 		reg = <0x10>;
 
 		clocks = <&clk_imx219_fixed>;
+		VANA-supply = <&reg_2p8v>;
+		VDIG-supply = <&reg_1p8v>;
+		VDDL-supply = <&reg_1p2v>;
 
 		port {
 			csi2_cam1: endpoint {
-- 
2.34.1